Extend Force-directed Scheduling for System-level Synthesis in Timeconstrained System-on-Chip Design

Scheduling time-constrained task graph to minimize resource requirement is a common and important problem in system-level synthesis (SLS) for system-onchip (SoC) designs. Many algorithms have been proposed to address this issue. In this paper, an extended scheduling algorithm based on force-directed heuristic is presented, which adopts a notion of continuous time rather than a notion of discrete time in high-level synthesis (HLS). Polynomial arithmetic is employed to calculate the force function and its extremal points. Preliminary experimental results show the feasibility of the proposed algorithm.